op orange



May 12, 1931.

E. c. WALTER REGISTER Filed July 22, l930 R m m E N m c W0 @fi Patented May 12, 1931 UNITED STATES PATENT OFFICE EDWARD C. WALTER, OIF ORANGE, NEW JERSEY, ASSIGNOR T0 MONROE CALCULATING MIA-CHINE COMPANY, OF ORANGE, NEW JERSEY, A CORPORATION OF DELAWARE REGISTER Application filed July 22,

The invention relates to improvements in registers and more particularly to improvements in clearing devices for the same, whereby the numeral wheels may be selectively brought to the zero registering posltlon.

The invention consists inthe novel construction and combination of parts, as set forth in the appended claims.

In the accompanying drawings illustrating the invention Fig. 1 is a right-hand perspective view of the preferred form of the invention and shows certain parts of the mechanism of the carriage.

Fig. 2 is a cross-sectional view taken near the extreme left-hand end of the carriage, showing the cam disc for rocking the rock bar.

Fig. 3 is a right-hand perspective view of a section of the rock bar, showing alternative mechanism for splitting the clearout.

Fig. 4 is a detail perspective view of a slide member and its operating pawl used in the split clearout mechanism shownin Fig. 3.

Fig. 5 is a detail'perspective view of the invention as applied to a half-cent mechanism. In these drawings the invention is shown as applied to a calculating machine constructed in accordance with the disclosure of U. S. Patent Number 1,396,612, issued to Nelson White on November 8, 1921.

The differential registration wheels 13, mounted upon a shaft 86, are supported in a transversely shiftable carriage 2, wherein are also mounted, upon a shaft 84, revolutions counting wheels 85, said carriage being employed in the well known manner in performing operations in multiplication and divis1on.

The wheels 13 and 85 are selectively brought to zero registering position by the following means:

A rock bar, pivotally mounted at 87 and 88 to the casing of the carriage 2, is located between, and parallel to, the differential registration wheels 13 and the revolutions counting wheels 85, and has supported thereon the members 417 provided with a series of lateral projections 89 and 93 normally located 1980. Serial No. 469,823.

out of the path of movement of suitable pins 90 of the respective numeral wheels.

I Pivotallymounted upon rock bar 407 and located at desired places is a series of pawls 91 provided with laterally projecting lugs 92 normally located out of the path of movement of the pins 90 of numeral wheels 13.

Bar 407 may be rocked forwardly or rearwardly by means of the discs 95 and 96, fast upon the respective shafts 84 and 86 and provided respectively with cam edges 97 and 98, adapted to engage oppositely projecting arms 99 and 100 of rock bar 407.

D1sc 95 is turned in a counter-clockwise d rection anddisc 96 is turned in a clockwise direction by suitable means as is fully described in the aforementioned patent.

The clockwise rotation of-disc 96 will cause the cam edge 98 to engage the arm 100 of rock bar 407 and rock said bar forwardly about pomts 87 and 88 to bring the projections 89 of slides 417 and the projections 92 of pawls 91 into the path of movement of the registering wheels 13.

While the bar 407 is held in rocked posialignment with the "O oppositev the sight openin The pawls 91 are held in position by spring clips 101 and are adapted to be rotated about their respective pivot points 102 by means of arms 103 extending up through suitable slots provlded in the casing of the carriage 2, to thus bring their respective projections 92 out of the path of movement of the pins 90 of numeral wheels 13 and being held in this position also by means-of the spring clip 101 as shown in Fig. 1 so that no clearing action of its corresponding numeral wheel will take place.

It may be noted of this form of the invention that the clearing or resetting devices related to a single numeral wheel may be set contrary to the setting of the other devices,

so that any single wheel may be selected for I an arrangement, reference is made to 'Fi ure 5 corresponding to the disclosure of app ication Serial Number 37 9,948, wherein a halfcent mechanism is provided for by resetting one of the numeral wheels to the five registering position, instead of to zero. In practice, it would be advantageous to select any numeral wheel for use as a half-cent wheel, and according to the present invention this may be done. by providing each numeral wheel withtwo resettingpins, 90 and 38 (Fig.

5), engageable with the related setting de-,

vice in different planes, and by giving the pawl 91 three positions of adjustment, as determined by the recesses in spring 101. By this arrangement, any numeral wheel may be set to clear to zero, to reset to five or to retain its registration, upon operationv of the clearing means.

A modified form of the invention operatesas follows:

Mounted upon the rock bar 407 by means of suitable lugs-106 as shown in Fig. 3 is a series of slidable members 107 having projections 108 normally located out of the path of movement of the pins 90 of numeral wheels 13. 7

Slide members 107 have lugs 109 extendin upward. through slot openings 110 provide in the rock bar 407, and have pivotally mounted thereon at 111 the levers 1112 extending upward through suitable openings in the carriagecasing and said levers being provided'with lugs 113 adapted to en age suitable indentures 114 in rock bar 40 as shown in Fig. 3.

The projections 108 are normally positioned to contact with pins 90 of the numeral wheels 13, upon movement of rock bar 407, as previously described, but if one of the levers 112 is pushed toward the right, it"will pivot about its fulcrum point 111 and lug 113 through engagement with indenture 114 of rock bar 407 will cause the slide member 107 to be moved toward the right, along slot 110, said member in contacting with the next adjacent right-hand slide member 107 etc. will cause all slide members 107 to the right thereof to be moved a suflicient distance to bring their respective projections 108 out of the path of movement of its corresponding pin 90 of numeral wheels 13, whereupon subsequent rotation of the numeral wheels 13 will cause'the pins 90 of said wheels to contact with projections 108 to the left of the lever moved, to bring the 0 into alignment with the sight opening, while those to the right thereof will retain the value registered thereon.

I claim: 1. In a register having numeral wheels; resetting means includin devices amociated with each numeral wheefi said resetting devices being individually adjustable to active or inactive preset position, in correspondence with or alternatively in contrast to the adjustment 9f the resetting devices related to the next adjacent higher and lower order numeral wheels;

2. In a' register having numeral wheels provided with projections; resetting means including a rock bar, a series of pivotally adjustable stop devices supported upon said bar and'provided each with a projection adapted to be brought into the path of-movement of a numeral wheel projection, and means for'holding said stop devices in adjusted position.

3. In a register having numeral wheels; resetting means including a series of devices related each to a numeral wheel and adjustable to active or inactive preset position, each device being adapted upon adjustment to effect similar -adjustment of an adjacent de vice.

Si ed at Orange, in the county of Essex, and tate of New Jersey this 19 day of July,

EDWARD c. WALTER. 

